Oct 29 2018

@Ryasmeen Is it possible you're looking at inspectors? The extension dialogs are graph, math[1], chem[1], maps, syntax highlight and pre. These and other dialogs should all have "Apply changes" - do you see those?

Oct 3 2018

While looking into this, I noticed the spacing between elements is affected by whether we have fieldset->widget or fieldset->field->widget. It's also affected by whether we use addItems() or append one element to the other. We should use these components properly to get a predictable appearance, and if there's a need to deviate, we should comment why.